Think someone is signing into your Facebook account? Here's how to find out with Facebook for iOS!

If you're curious about where your Facebook account gets signed in from, or you're suspicious that someone has been logging into your account without permission, there's a lesser known feature called Facebook sessions that can tell you exactly where your account is signed in from geographically, and in most cases you can even see what device was used. Here's how to access the feature with Facebook for iPhone and iPad: